Since January 2020, the coronavirus has gradually erupted, people all over the world have taken a lot of measures to conquer it. In order to control and prevent the epidemic, The Chinese government expands Spring Festival to 10th Feb, and some factories in China decide do not open production until the end of Feb. However, during the isolation period in-home, we need food to keep energy, there is one of most important parts for us about how to keep food fresh when in isolation in case of Coronavirus.